Twist HoopsClassic mammoth ivory puffed rope hoop earrings are hand carved and set with sterling silver or solid 14kt post backs and clutches. Approximately 24mm twist hoop size. Prehistoric woolly mammoth ivory is found by chance in the cold northern regions of Alaska, Canada, Russia, and Siberia. Fossil tusks may range in age from 10,000 to 200,00 years, an natural colors vary depending upon what minerals the tusk laid next to and for how many tens of